bobbybob's 73 star ASM3D route

TTM (8) with water storage
Go to goomboss and get mario key (9)
Unlock mario and switch back to yoshi, do both lava slide stars (11)
Do both ice secret stars and all of ccm ripoff as yoshi (21)
Switch to mario and do 1st bowser reds and fight (22)
Go upstairs and do all 3 sunshine levels and luigi reds + unlock (26)
Wario level switch +unlock Wario, get balcony star and ? switch +reds (29)
Switch to luigi, and do all of the bay level stars (37)
Go outside, get vanish cap star, and use vanish cap from inside cage to easily do 1st key door skip and go up to the top room
All of swamp level (46)
Switch to wario and do the black box switch star level (47)
Switch to mario and do hmc ripoff (55)
Go upstairs and do mega level and desert (64)
Go to tippy ripoff and do ttm and lll ripoff (72)
Do toad clip and get last star (73)