I've made a game for Palette Jam 2 called Minetroid.
The jam was over allowing me to update the game with more ideas and features which didn't make it to jam version. You can download both jam version and post jam version here:
https://darkbloodbane.itch.io/minetroid
Game story:
A robot who has fallen into an abandoned underground mine. It needs to find upgrades in order to access new areas and finally escape from the mine. The mine is moderately unstable so exploring could be dangerous and put the robot on the edge.
There's a rumor about legendary gem inside the mine but no one knows for sure.
Some shots from the game:
Enjoy this short metroidvania ! :D