I failed because the next stage heart was already on the middle heart and i haven't seen the new keys i need to press. Maybe make the next stage start a bit later? Btw fun game and nice art style
aah now i know what you mean. you can simply press any of the 4 keys, every stage requires you to deliver oxygen to all 4 limbs anyways (if they’re not dead yet). we could’ve made it more obvious though, i take that :D
