Board Thread:General Discussion/@comment-1313357-20130513224643/@comment-3153244-20130830234054

Tier 6 Dart core will help a lot. It is possible to stay in the top right corner if you use it. Combined with a few epics, it is easy to Diamond the early Monkey Lane levels.

Also possible to Diamond 1-1 with Tier 2 upgrades only, and 1-2 with Tier 1 upgrades (research required of course).