Short and sweet :) Beautiful pixel art!
Sometimes the boxes fall through walls and I think the duck/spike colliders are a bit too big, it feels unfair that the spikes kill you they don't touch even the duck. But otherwise cute and fun little puzzle game! :)
Really fun idea! You should consider adding a single player mode I think that would be a blast :) Cute art and overall well presented!
Fun little spearfishing game! Some kind of feedback when you're low on oxygen would be nice.
Wait, what diagonal hack? xD