8bit Ninja By Dogbyte Games-FREE

[DOOMBOT]

I leveled the Sensei to 15 and didn't get the grinder achievement or the one that requires you to get the Sensei to level 15.

What are the plans for the next update? I've been saving dragon fruits in case (130 currently), I want to spend them on arenas or a new ninja, but not if something cool is coming up.

Also, what are people finding to be the best power-up combos? I like the mines and the rockets, but I don't know if I should try an avoidance build (shield, reflexes, etc)