In Mega Man 7, Kerones appear in Burst Man's stage, Slash Man's stage and Wily Stage 2. They repeat a simple pattern, waiting on the ground and blinking and then making a tall but short jump towards Mega Man. Unlike the similar Mechakkero enemy from earlier games, Kerone is large enough to be hit easily with the Mega Buster even when sitting on the ground.
Related Enemies
Mechakkero (Mega Man 3) - A flat frog robot that cannot be hit with the Mega Buster while resting on the ground.
References
↑Mega Man: Official Complete Works art book, 2009.