Noobs Are Coming is a new release that takes the skin of Brotato and puts you in the shoes of a final boss, complete with really weird abilities. Note: key provided by the developer.
The developer said they were directly inspired by Brotato and The Binding of Isaac, which you can tell within a few seconds based on the gameplay and some of the visual style. It's an arena-based top-down rogue-lite shooter, where you pick a boss and go through rounds where you get more and more powerful.
You likely already know the drill for these games but if not — you pick a character and some abilities, then run around a small arena fighting off waves of enemies while collecting experience points from little orbs they drop. In between waves you spend orbs to add new weapons to your arsenal, or upgrade existing weapons and add buffs to your character ready to go through the next more challenging wave.

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Currently in Early Access so it's not a finished game but what it has is good fun though, with lots of weird combinations to try out for all the characters. They're all so different which is nice, with their play-style being thoroughly unique between them on what you can pick to begin with and how you can power up during a run. Like the boss that starts with a mini-me attached to you via an umbilical cord that you can keep upgrading, or the ability to repeatedly plant an angry tomato you need to run over to water and then they will spring up and dash at enemies. It can be pretty funny in a completely ridiculous way.
I'm keen to see how it will evolve during Early Access, as I think it still needs to pull itself apart from the Brotato roots just a little bit more.
Quite an early hit too with it selling over 5,000 copies in a single day. Not a lot for bigger developers but pretty great for a tiny indie with no real marketing behind it.
The developer mentioned they plan to add "more content, such as new playable characters, weapons, items, enemies" and they're looking into "expanding playstyle variety to deepen build options and synergies".
If you love fast-paced arena fights with auto-shooting like Brotato, Vampire Survivors and the like you'll probably get on quite well with this. The Native Linux version tested runs well, although the Steam Overlay didn't work with it for me.