8-Way Microbomb: 1 for U-Ship, 3 for building, destroyed entire first wave and two following buildings, 1 for flying wheel if lucky
Atom Bombs: enough ammo to wreck 3 U-Ship waves, one flying wheel wave and some assorted buildings
Battleship-Class Firebomb: wrecked everything it was thrown at accurately
Beno Protron System -B-: heavy aiming problems and not as good as Firebomb, but still good
Beno Wallop Beam: destroyed only a single U-Ship
Buster Rocket: two rockets required to destroy U-Ship wave, not enough firepower to destroy an entire wave, 4 for a building
Charge Cannon: 2 U-Ships and following building destroyed; the charge is useless and detrimental
Companion Ship Gerund: 1 U-Ship destroyed, couldn't destroy the following building
Companion Ship Quicksilver: destroyed all U-Ships in the wave, then some more
Companion Ship Warfly: 2 U-Ships destroyed, barely destroyed the following building
Dual Shot Option: 2 U-Ships and the following building destroyed
Mega Missile: took 4 of them to destroy one U-Ship wave and following building
Microbomb: destroyed first two U-Ships, couldn't destroy following building
MicroSol Frontblaster: can't destroy anything
MicroSol Frontblaster II: could destroy waves of U-Ships, but nothing else
Mini-Missile: only enough to destroy one U-Ship wave and following building
Mint-O-Ship: 1 U-Ship destroyed, couldn't destroy the following building
Phoenix Device: one shot can destroy a building, two U-Ships or one flying wheel, not enough firepower to kill entire U-Ship wave
Plasma Storm: one shot destroys entire U-Ship wave, but three are required for a building
Post-It Mine: one for U-Ship, two for entire wave, one for building, couldn't really kill flying wheels
Protron Cannon Indigo: enough to kill U-Ships, but not enough for heavier targets
Protron Cannon Tangerine: heavy aiming problems and not as good as Firebomb, but still good
Side Ship: slightly better than Vulcan Option
Single Shot Option: 1 U-Ship destroyed, couldn't destroy the following building
Tropical Cherry Companion: 3 U-Ships destroyed, destroyed the following building
Vulcan Shot Option: entire waves of U-Ships destroyed, damaged flying wheels groups
Wobbley: 2 U-Ships destroyed, but couldn't destroy the following building
Zica Flamethrower: slightly more destruction than Vulcan Option
Zica Supercharger: same as Vulcan Option; charge doesn't really help








LVL1
Pulse Cannon: can't destroy the first entire wave of U-Ships, but destroyed the following building
Multi Cannon: same
Mega Cannon: barely destroys the first wave of U-Ships and following building
Laser: can't destroy more than two U-Ships
Zica Laser: can destroy the first entire wave and following building, better than Pulse Cannon
Protron Z: can destroy the first wave, but not following building
Vulcan Cannon: can destroy the first wave, but not following building
Lightning Cannon: can only destroy the first three U-Ships
Protron: can only destroy the first three U-Ships
Wild Ball: can only destroy the first U-Ship
Missile Launcher: can only destroy the first U-Ship
Mega Pulse: can only destroy the first three U-Ships, can't destroy the following building
Heavy Missile Launcher: same as Pulse Cannon
Banana: can only destroy the first two U-Ships
Hot Dog: same or slightly better than Pulse Cannon
Hyper Pulse: can only destroy the first two U-Ships
Guided Bombs: can only destroy the first two U-Ships, but destroyed the following building
Shuriken Field: destroyed first three U-Ships and the following building
Poison Bomb: same
Protron Field: destroyed only the first U-Ship
The Orange Juicer: destroyed the first two U-Ships and the following building
NortShip Pulse: can only destroy the first U-Ship and the following building

LVL6
Pulse Cannon: can't destroy descending blue frigate
Multi Cannon: no better than it was at level 1
Mega Cannon: barely better than it was at level 1
Laser: obliterates a lot
Zica Laser: pretty much same
Protron Z: worse than previous two, but better than Pulse Cannon
Vulcan Cannon: worse than it was at level 1
Lightning Cannon: same or worse than Pulse Cannon
Protron: got up to the same level LVL1 Pulse Cannon was
Wild Ball: destroyed first four U-Ships, following building and one flying wheel
Missile Launcher: Pulse Cannon, but horrible aim and slightly worse
Mega Pulse: Pulse Cannon, but horrible aim and slightly worse
Heavy Missile Launcher: slightly better than Pulse Cannon, but horrible aim
Banana: same as LVL1 Pulse Cannon, but horrible aim
Hot Dog: slightly better than Pulse Cannon
Hyper Pulse: same
Guided Bombs: can only destroy the first three U-Ships and the following building
Shuriken Field: same as Pulse Cannon
Poison Bomb: definitely stronger than Pulse Cannon, close to Laser/Zica Laser
Protron Field: destroyed first two U-Ships and the following building
The Orange Juicer: potentially more powerful than Pulse Cannon, but much less reliable
NortShip Pulse: marginally better than Pulse Cannon

LVL11
Pulse Cannon: same destruction level Laser/Zica Laser had at LVL6
Multi Cannon: same destruction level Pulse Cannon had at LVL6
Mega Cannon: obliterated almost everything, better than Pulse Cannon
Laser: obliterated the entire level
Zica Laser: slightly weaker than Laser, but still obliterated the entire level
Protron Z: somewhat better than Pulse Cannon
Vulcan Cannon: weaker than LVL6 Pulse Cannon
Lightning Cannon: minor upgrade from Protron Z
Protron: same or slightly better than Pulse Cannon
Wild Ball: same as Multi Cannon?
Missile Launcher: same as LVL6 Pulse Cannon
Mega Pulse: worse than Lightning Cannon, but better than Pulse Cannon
Heavy Missile Launcher: same as Pulse Cannon, except less wieldy
Banana: better than Pulse Cannon
Hot Dog: worse than Pulse Cannon
Hyper Pulse: slightly weaker than Pulse Cannon
Guided Bombs: better than LVL1 Pulse Cannon, but not by much
Shuriken Field: same or slightly better than Pulse Cannon
Poison Bomb: close to Zica Laser power, but less wieldy
Protron Field: same as Multi Cannon
The Orange Juicer: potentially more powerful than Pulse Cannon, but much less reliable
NortShip Pulse: same as Mega Pulse




LVL1
Starburst: two U-Fighters destroyed
Multi Cannon: nothing destroyed
Sonic Wave: 1 U-Fighter destroyed
Protron: nothing destroyed
Vulcan Cannon: 1 U-Fighter destroyed
Fireball: 1 U-Fighter destroyed
Heavy Missile Launcher: nothing destroyed
Mega Pulse: nothing destroyed
Banana: two U-Fighters destroyed
Hot Dog: two U-Fighters destroyed (plus one from opposite group without even trying)
Guided Micro Bombs: nothing destroyed
Heavy Guided Bombs: nothing destroyed
Scatter Wave: 1 U-Ship destroyed
NortShip Spreader: 1 U-Ship destroyed
NortShip Spreader B: 3 U-Ships destroyed

LVL6
Starburst: wrecked one entire U-Ship groups, some more U-Ships and one building, then two flying wheels
Multi Cannon: problems destroying more than two U-Ships
Sonic Wave: wrecked U-Ships and half of flying wheels, can destroy a descending blue frigate and a half
Protron: similar U-Ship destruction to starburst, but lacks firepower for flying wheels
ALTERNATIVELY together with pulse cannon destroyed half of descending blue frigate
Vulcan Cannon: 2 U-Ships destroyed
Fireball: 3 U-Ships and following building destroyed
Heavy Missile Launcher: slightly better than Starburst
Mega Pulse: slightly better than Starburst
Banana: even more powerful than Sonic Wave, wrecked almost everything (aiming problems)
Hot Dog: slightly better than Starburst
Guided Micro Bombs: 3 U-Ships and following building destroyed
Heavy Guided Bombs: 2 U-Ships destroyed
Scatter Wave: 5 U-Ships and following building destroyed
NortShip Spreader: wrecked most U-Ships, two flying wheels and one descending frigate
NortShip Spreader B: wrecked some U-Ships and two flying wheels and half of descending frigate

LVL11
Starburst: destroyed all U-Ships and flying wheels, and three descending frigates
Multi Cannon: destroyed all U-Ships, but had problems with flying wheels and destroyed only one descending frigate
Sonic Wave: seems slightly weaker than Starburst
Protron: weaker than Multi Cannon
Vulcan Cannon: same as Multi Cannon
Fireball: same or slightly stronger than Multi Cannon
Heavy Missile Launcher: same or slightly stronger than Multi Cannon
Mega Pulse: wrecked all U-Ships and flying wheels, then more than two descending frigates
Banana: hard shit wrecking
Hot Dog: destroyed most U-Ships, but had problems with flying wheels
Guided Micro Bombs: wrecked some U-Ships and flying wheels and one descending frigate
Heavy Guided Bombs: slightly stronger, but less reliable than above
Scatter Wave: wrecked most U-Ships, more than half flying wheels and half of descending frigate
NortShip Spreader: same as Banana
NortShip Spreader B: destroyed some U-Ships and flying wheels and 1.5 descending frigate


General conclusions:
Front guns powerlevels (lvl11, anything stronger than Pulse Cannon):
1. Laser
2. Zica Laser
3. Poison Bomb
4. Mega Cannon / Lightning Cannon (very high energy use)
5. Mega Pulse / NortShip Pulse / Protron Z / Banana
6. Protron / Shuriken Field

Rear gun powerlevels (lvl11):
1. Banana
2. NortShip Spreader
3. Rear Mega Pulse / Sonic Wave / Starburst (less practical but more powerful than the other two)
4. Fireball / Rear Heavy Missile Launcher
5. Everything else
Complete shit. Protron, Hot Dog

Conclusion: just shipedit yourself a mid-tier ship build on Impossible/Suicide/LORD or low-tier on Hard/Impossible, try to beat the game upgrading only front/rear gun levels and have fun.