I haven't too much exp with bullet hell - I did both major Undertale routes with no armor/weapons/healing + no-hit most of the bosses and some free games on Itch, my favorite of those before WAKER was time takker because of it's unique mechanic.

Some time ago I've started to follow a YTber who plays (besides other stuff) Geometry Dash and some hardcore platformers, more recently I started playing GD with my younger brother... rather for him because he's too young to understand the gameplay (it's amusing to see though how far one can get in this game by randomly tapping on the screen) but likes all the graphics and stuff so he litterally forces me to play it for him. Anyway, looking at my exp and the videos described above it's very funny to see how the simplest bullet hell elements can get an extreme challenge with a mechanics that feels like you're using a wheel to bounce a piece of ****. Just needed to get this off my chest.

Anyways, GREAT JOB!I've actually expected the final boss to be something totally evil and hardcore but somehow the "prequel" was harder. Despite that the ending was totally worth it, thanks.