Jelectros are Jellyfish like enemies/obstacles seen only in "Super Mabobo".
Jelectros are a Jellyfish like enemy that originates from Super Mario Bros. 3.
In The Game
Six red flashing Jelectros are seen forming a barrier in front of Mechafish at the beginning of "Super Mabobo". This enemy serves as a obstacle rather than a enemy, since they can't be defeated and they don't have a health-box. If Mechafish is defeated by Abobo, the six Jelectros would then explode and lead Abobo to SMB2 door to Annie.