Arrow Keys - Move Link/Epona, move through menu selections, aim the bow/hookshot/Steer King of Red Lions
Z - Action/Talk/Read/Play Gemshorn/Get on King of Red Lions
X - Sword/Close Textbox/Close Gemshorn box/Get off Epona/Get off King of Red Lions
ASD - Use items/Select items from inventory/Play Gemshorn
Enter - Pause/Inventory
Q - Go to the pause menu to the left
E - Go to the pause menu to the right
I/O - Switch between Pictobox upgrades
P - Unlock all items, songs, etc.
Shift - Hide/Unhide info box & time meter
Ctrl - Hide/Unhide shading overlay
1,2,3,4,5 - Change weather
Mouse wheel - Increase/decrease time
Space - Freeze time