Berserk Studios actually made some of my favorite games ever, and I feel like talking about one of those games now.
Consider it a baby JPATG in single-post form.
The game in question is
The Breach, and it's an action-platformer with horror elements. While the game is short and relatively linear, it is fucking
mighty in what it sets out to do. You play as Sergei, a Federation Engineer who is called to help out a new ship, the Hermes, which is cosmically adrift after attempting to use its new folding-space warp-drive for the first time. It's suspected it had a major electrical fuck-up, and you've seen this sort of game before, but probably not where it's going with it, because by the standards of 2010-era Berserk Studios games done in Flash, it's surprisingly narrative-driven.
You land and things quickly go pear-shaped. The entire ship is mostly without power, and almost immediately, you run into the animated remains of the crew, whose bodies twitch and distort like they're plagued with a tracking problem, each of them with a massive wound in their torsos. Thankfully, you aren't helpless; you have a rifle that has unlimited ammo, and as you level up, it gets stronger and faster. Early on, enemies are rather tanky, but you'll start shredding them as you level up, especially if you get the weapon upgrade parts hidden in the game.
Not too long into the game, your character sees a vision of a mountain range with a huge moth glowing in light in the distance. Your mission is to figure out what's going on here, work your way through the ship, acquire upgrades as you go, and then move onto the next area. It looks Metroidvania-Y but isn't; instead it's more linear. Most of the upgrades are mandatory (you need at least one suit upgrade, and only one weapon upgrade can be missed), but they do give you more options; the Military Suit gives you a thruster-powered double-jump and the Prototype Suit has a dash system.
However, the game is not interested in wasting your time, and gets to the point really quick. Not too long into the second level, you suddenly find yourself.... Elsewhere.
It do be like dat though. Shit just gets weirder and weirder.
Eventually you come upon that the entire thing is the work of something called "The Yellow," and by using the Jump Drive for a long distance, the crew inadvertently subjected themselves to its dimension for a protracted period. Now it has an interest in this dimension, and it can only gain a foothold by using the bodies of the crew that submit to its possession. As you proceed forwards, more freaky shit happens and you wind up fighting boss monsters as your mission gradually becomes a case of "scuttle the ship and get the fuck out."
You can beat it in like an hour, it has no business being as good as it is for what it is.