unique enemies

each level of my game will have enemies shared for each of them, but each of them has 3 or more unique enemies such as this one for No. 464 stage abandon military factory. they all so have the same weakness to the boss.
__________________________________________________________________________________________________________
Name: Gun jumper (jump cannon)

note: name needs to be tweaked  just a bit 

info: a small robot made to be a moving point defence turret. with small spring underneath it and a gyroscope it can jump in any direction it chooses, it can also latch itself to any surface allowing it to aim better with its gun