Brain Test Level 331 (NEW) Stop the monster

Daze Puzzle provides a complete walkthrough for "Brain Test Level 331: Stop the monster!".

By Emir Lajev /
Level 331 in other versions:
brain test logo
Brain Test 1
Question
Stop the monster!
Hints
Hint 1:
That robot arm has a screw missing.
Step 1
Answer
The right most spot on moster's body is actually a screw. Put that screw in the empty hole on the cannon to fix it.