Not Much to it
This is supposed to be a platform game maker, but it's lacking so many things.
You need:
-The ability to place enemies on the map.
-An eraser tool.(I know there's an undo last action button, but an eraser tool would work better in some cases.)
-The ability to make multiple levels, as well as the ability to make an end to each level.
-The character needs to die when he hits the bottom of the map.
-What's the point in making a game if we can't save it and work on it/play it later?
Those are some things I consider to be essential for this sort of thing; here are some things I would like to see for an added fun factor:
-The ability to upload my own level background, and even my own songs.
-The option to doodle custom enemies with the draw tool.(once and if enemies are added in.)
-More colors for the drawing tool, as well as different shapes to draw with.(Like MS Paint, a pencil tool, a paint tool, etc..)
There's some fun to be had, as I said though; it's very limited and feels incomplete. I would have faith that this project might get better over time, however; if you look at every other game maker made in flash they've failed or have been abandoned for quite some time now.(still waiting on the flash rpg maker that I found this site three years ago to update!)
2/5-Maybe you can be the first to complete a fully functional flash game maker. I wish you luck with this project.