Very cool game! I liked how each level switched it up by letting you access a different dimension/direction of movement. I am historically pretty bad a bullet-hell games but I did manage to beat this and without any upgrades (mostly because I didn't know they were there until after reading the comments). I think level 1 was probably the hardest level because of the lack of forward and back control. Ironically, level 3 is the same but at a different angle but didn't feel as punishing. Maybe I had gotten more used to it by then. Level 2 I think was the most unique and definitely surprised me when all of the sudden I was moving through 3D space. I do wish the theme was incorporated a bit more into the gameplay. Maybe it's just cause I missed the upgrades which I do see have it some. I REALLY like the idea of sleep being a rare resource in the future and an economy is established around it. That is a super cool and unique idea and I'd love to see more of that. The art was very cool and retro which fit the limitations of the jam but also the tone/style of the game. And the whole experience was very polished, I didn't run into any bugs to hiccups. Well done! Thanks for making and sharing it :)