In a flash, MALS Man can withdraw into a bubble of darkness where he sits miserable listening to depressing songs. Nothing can penetrate the darkness.
MALS Man's Manlove ability can turn straight men gay for a brief and confused period of time. They stop to question everything they knew about themselves, then feel strange and full of regret for things they enjoyed but now wish they hadn't done. Note: actual gay supervillains are immune to this power.
Of course, every superhero has a weakness. MALS Man's is his mood. All his powers depend on a forced state of misery. Jokes, amusing anecdotes and happy songs can all destroy this state and MALS Man becomes powerless. To defend against this, he wears his headphones and pink girly iPod but, if his headphones are removed, he is at your mercy. Put on just about any track by Journey and this happens -
It's quite horrific.
These are just his default powers and weaknesses. Things all changed during the Black Tights Saga, when he got a new suit, went deaf and replaced Emo-Teddy.