You can play Mr.Bullet in a99io.com as unblocked.
Mr Bullet is a fun online puzzle game where you control a secret agent on an important mission. Your goal will be to get rid of enemies and move on to the next level. It will be easy in the beginning and you just need to aim well. But since you have a limited number of shells, you need to think about how you will make your shots. As you progress through the levels, it will get more and more difficult. Feel free to use bouncing bullets to shoot people behind walls. Sometimes this will be your only chance to shoot down your enemy. Find the perfect trajectory and win every level.