The Ultra Hand is a trap that appears only in the Secret Base level of Balloon Kid and Balloon Fight GB.
It's a claw on the end of a extending criss-crossed segments, just like the original Ultra Hand toy, although the claw on this is far more substantial than the two yellow cups on an actual Ultra Hand.
Function EditThe claw will extend and retract, and whenever it's extended, it will hold the player in place. The placement of the Ultra Hands under moving spikes makes them particularly dangerous. However, since they only appear at the bottom of the stage in lava, the player won't typically be near them.