Not sure why this doesn't have more ratings - it was quite well done!
I really enjoyed the art style and the cheeky "only three colors on-screen at once" use of the restriction. It wasn't super clear what the different emotions did in terms of impact, which I feel was a bit of a missed opportunity if there was supposed to be a difference there (it seemed like there was, based on your description?). The SFX were a bit "blinky" I guess I'd call them - sort of noisy in an arcade-y kind of way, but that stuff is hard to balance, so I get it.
I must say that the dash was a weird inclusion to me. Like, I get it - you want to give the player the option to move more quickly, especially in a world of avoiding many projectiles and traversing a space that's larger than a single camera's view surface. However, when adding something, consider why; if the player has no reason not to press dash, then don't make it a button to press at all and simply make their movement speed higher (here, they don't have a reason not to dash, as the enemies only have collision-boxes, not damaging flags, as far as I've seen).
Still, the polish here is really nice, and it complimented your emotions mechanic well (could have been even better in terms of mechanical clarity, but you brought something unique already, so..).