Headlander

Is this a hidden gem? Nah. Is it fun? Yeah, it's pretty fun.
Headlander is a Metroidvania where you play as a rocket-powered disembodied head that can suck off the heads of robots to steal their bodies. When you're sans a body, you have free vertical and horizontal movement but have no offensive capabilities; when you have a body you'll get access to guns (and dancing). The gunplay is... there. You'll spam a lot of lasers. They'll make pretty colors. Things will explode.
The Metroidvania aspects of the game rely less on acquired skills and more on the bodies that you steal. Doors have clearance levels and you'll have to find and steal bodies with the appropriate clearance levels to open doors. You'll still get new skills but they don't feel as consequential as they do in other Metroidvania games.
The presentation is great. It oozes 1970s kitsch and the graphics still hold up today. It's humorous without being annoying but the writing isn't as strong as Double Fine's other games.
I'd recommend playing this if it looks interesting to you. This was published by Adult Swim Games so there's no telling how long you'll be able to purchase it, which is a real shame.

A short, fun, amazing, addictive metroidvania. Damn I wish this game had some DLC or a sequel.

Good metroidvania style game.

The artstyle makes it so that it does not nook dated. The world is well designed and the mechanics are fun to play.

Not too complicated to 100% as well.

8/10

No idea when or how I even got this game. Maybe in a bundle? Anyway, I had fun. Groovy aesthetic, wacky storyline, good gameplay. Fly around as a disembodied head. What more can you ask for?

Fun experience with a bit repetitive gameplay, however the uniqueness and world-design elevates it to a mindblowing level! Double Fine once again demonstrated that creativity is king in gaming

Absolutely amazing. This game has definetly been overlooked. Never heard of it, found it by chance. Every aspects are great. The design, the animation, the soundrack, the gameplay, the action and the quests are all so cool. Getting this game is a now brainer.

A doubly fine game. A wacky story, fun characters, interesting combat, great aesthetic, fully voice acted and lots of puns.
I hesitate to call it a metroidvania though, but i guess that's just me. Also 60fps lock is kinda meh.
Get it on discount if you think it's too short.