You can play Shooterz.io in a99.io as unblocked.
In Shooterz.io, which is an online action game, you can use the Ballistic Knife weapon by pressing the 1 button. You can use the Deagle with the 2 button. You can use the MP5KA4 with the 3 button. You can use STW-25 with 4 keys. You can use the M87T with the 5 button. You can use the Blaser R93 with the 6 key. You can run fast by holding down the Shift key. You can use RPG by pressing 8 key. You can throw a bomb by pressing the 9 key. Since everyone is one in the game, everyone can kill each other. Before time runs out, whoever kills the most wins.