Adventures of the 50-foot-tall Stalk of Celery (Atari 2600 WIP)

[+atari2600land]

In case you don't read the bB thread, I'm making a game for the 2600 and would like some feedback on it. It's a side-scrolling platformer game called "The Adventures of the 50-Foot-Tall Stalk of Celery." You control Mr. Celery, a stalk of celery who goes to various places and faces different enemies along the way. Right now, there are 6 different levels, and you can select which level to start at at the title screen by pressing right. (I'm going to make this feature accessible by a code when finished.) To start a game, press Fire. Also, press fire to jump and left and right to move Mr. Celery. Level 6 is not yet completed. The link to the official page is in my signature, but I'm putting the latest ROM here. So, what do you think?

50celery47.bas.bin