2D Level Builder Game

Hello all, looking for feedback on my game that allows you to create and share 2D platformer levels.

First, a short demo:

See the ‘Help’ menu in-game for info on how to control the game and use the editor.

I’m mostly looking for feedback on what I can add to expand the content here. The framework for everything is in place but in terms of items/enemies/blocks it is pretty thin right now.

I only have 2 sample levels up right now, give them a try and then build and share your own. Mine are:
DQHA-ACL9-C4I2 - A simple level with not much going on
YGV3-B8FE-TIX4 - Grab coins to increase the time limit and make it to the end