When the intensive rating ends I'm going to publish a Bob-omb level
and if someone publishes a similar level before mine this is the proof that I've got this idea first.
Here's a sneak peek of how the level looks:
Publish a certain amount of levels
Rate a certain amount of levels
Get a certain number of rates on a level
Be a member for a certain number of days. Login required to activate new achievement.
Add unique images to other users' levels (must be relatively new levels).
Get a certain number of contest points.