Suggested by Destroyer Shenron and Porunga can both grant wishes but only Porunga looks ready to throw a fight. Shenron has been destroyed several times over the years and has not really gotten to show off any impressive abilities thus far. That’s going to put him in a bad spot here as Porunga can just overwhelm him. Neither one of these two will be considered a top tier but there is definitely a difference in ability that should be noted. Porunga wins.
Suggested by Sonic Gloomba is a pretty fun Mario villain even if he isn’t remembered too well at this point. Gloomba has heart, but that alone isn’t quite enough to defeat a dragon like Porunga. Porunga has never really had a chance to fight before, but thanks to his sheer size he could simply step on Gloomba and be done with it. At that point there isn’t anything that the little creature could do so it would be game over. Porunga wins.
The BioLizard is one of those beings that you don’t want to mess with. With a single energy blast he can cause some intense damage and show the world who’s really in charge. Porunga is pretty powerful and if he lands a hit then it could be all over, but in the end it won’t be enough. The BioLizard wins.
Lazerman has his disruption beam which can take down nearly any being in one shot. Porunga may be powerful, but in the end he’s not fast enough. Even in raw power he can’t take down Lazerman. Lazerman’s beaten much stronger opponents in the past. They just didn’t have what it took to win. Lazerman wins.