Finished with 11 cakes and 76 deaths. What a fun game! I'll admit I've no idea what a Bucko might be or who that vtuber (I presume) is and just played this based on the description. There's a really good set of mechanics and some very fun dosformer level design. The way powerups work is cool as well, spent a while dying in a certain level but always managing to get back my double jump the next run... excellent tension. Art and sound design is super good as well.
I guess the one thing I'd say is some levels seemed a little too difficult to process every part of while playing? the one with 3 yellow teleporters, a chasing robot and a a bouncey robot felt like my brain was on fire... maybe I'm just an inadequate bucko gamer.
Nice work!