Full Metal Schoolgirl
I could start by describing this game, but you really need to see it to appreciate its gloriously OTT charm.
As you probably gathered from the trailer, it's a comedic anime-style third-person shooter that's full of personality. Coming from the developer of the Earth Defence Force series, imagine that level of chaos compacted into enclosed arenas and corridors. Rooms are packed with furniture items that are all physics objects, so there's always debris flying everywhere. Enemies explode into pieces when defeated. Later in the game there are loads of environmental hazards too. It plays like a modern take on Smash TV, a comparison enhanced by your cyborg schoolgirl's rampage being (fictionally) livestreamed to an audience that will occassionally request that you wipe out enemies under certain conditions in exchange for cash.
The core gameplay mechanics and the range of weapons and special attacks are all great fun. The only thing holding it back from an unqualified recommendation is the game structure. It's a rogue-lite with randomly generated level layouts. Considering that the tower you're climbing has 100 levels and each takes 5-10 minutes, it really would have been more satisfying with normal checkpoint-based progression. Instead, defeating a boss gives you an elevator key that you can use to skip to the boss's floor on your next run. The baffling design decision here is that the elevator key is consumable, so you have to start over from the first floor if you're defeated after using it, and then defeat the boss again to get another key. The game does give you additional keys for intermediate floors as you progress higher up the tower, but you can still be looking at an hour or two between each boss.
Fortunately this isn't a brutally difficult game, and has an easy mode if you want it. It's challenging in places (on normal), but never crosses over into Returnal levels of unfairness. It also supports manual saving between runs, so you can choose between either doing repeated runs on one save file to earn money to upgrade your character, or keep reloading a save file where you have an elevator key so you can avoid repeating the same floors. Anyone who is fine with the repetition of rogue-lites should definitely check it out, and I'll give it a cautious recommendation to people like me who don't normally have the patience for these kinds of games.