Square Slime

My submission for Metroidvania Month 3 Game Jam.

Explore a (tiny) abandoned laboratory, find 5 upgrades and defeat the boss to win. Climb the walls and ceilings and manage your size, which serves you both as health and ammunition.

Controls:
A,D - movement
W - jump, climb up
S - climb down
E - shrink
, - fire
. - aim upwards
/ - freeze rotation

Upgrades:
Light green - reduces the cost of attacking
Teal - allows jumping in the air
Red - increases damage. Attacks can now destroy damaged doors
Purple - reduces damage taken by 25%
Dark green - increases maximum size
White - not exactly an upgrade