Loved this. Properly sat down and played through its "entirety". Almost everything about this was well implemented. Very fun and the mechanics feel good, really nailed the "complexity from simplicity" design. The only disappointing thing was lack of ending, even something simple. I was really expecting to jump that gap to some kind of end-game screen, the bug wherein dash doesn't work on the first level is somewhat disappointing, but I was still able to get across by taking some damage and using double-jump, so I pretended that was the end and felt a sense of accomplishment anyway :P Really great work! Keep it up :)