Just a small note, my idea was mostly just a stupid joke and not a serious gametype proposal.

I like the idea of heaving people be able to improve the level together using coins. You could make be only a secondary objective but what if people got a few coins at the start of a level and they could use them on one level upgrade, and so every time people play they can create a different playing area based on their choices, with different strategy needs.

Edit: Oh, and another small note, the BC level that is referred to is mostly made by Ragnarok, although I made up the concept.