Controls:

A and D to move left and right. (W and S move up and down in "falling" rooms.)

Shift to dash, Space to jump.

ESC pauses the game outside of boss fights and cutscenes.

Enter skips the current room. There are a couple boss fights that might be too hard. You may want to make use of this ability in those.

Left-click to make selections and shoot bullets, right-click to fire a big bullet when your mana is full.

Close the game to have more fun than you were having before.

All problems with the game are the fault of IsaaCorp!*

*not a real company. It's actually our fault.