First off, the Antlion.
I imagined of the Antlions to have an aggressive manner towards people in the minigame and will tend to attack any random foe they find. However, obtaining the Pheropods can manipulate the Antlions to attack for them. I was thinking that putting in AI Antlions in Blockland will be more entertaining in minigames.
Second of all, SMOD weapons. It includes: Soy beans, scissors that do 25 damage and bounces on ground contact, PSP UMD launcher, kick, banana bomb, and the shovel.
Video is here:
http://www.youtube.com/watch?v=UB8LT9zyYEo