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the demo looks pretty awesome - esp. the no. of line of code vs the result produced. Tinkering with it myself. Promising.

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Except when you reach the "tower", it starts spitting alerts and the only way out is to close Firefox (actually kill it). Meh :(

Also, I see the handler for collisions for the enemies, but where does it say that you can jump on them with no problem? Is that behaviour set somewhere explicitly?

hmmmmmm, seems to work okay in Chrome 22. When you reach the tower, it popups an alert saying you win, restarting the level, as expected.

As for the jump on enemy part, perplexed myself re. that. Maybe that's default behavior. Just some rough edges I presume.

That was sort of an accident but I left it that way as I'm working on a "enchancement" tutorial that makes it more like a standard platformer and adds in particle effects, etc.

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