I finally published my 2D platformer, check it out here:  The Lost Box, it's free!

Play as a yellow box in this 2D Platformer under the ground, where enemies lurking all over the place. The levels are difficulty designed, so you need to master your skills to survive this world with a lot of secrets. Drink bunch of different potions to get different kind of skills. Solve puzzles to find a key, and don't forget to jump on trampolines.