The Nemesis in Cave Story, sure it's powerful if you know how to use it right, but it's a lot of maintenance to either switch weapons when collecting triangles, or hurting yourself to charge it down. probably doesn't help the areas that might really need it are cluttered with enemies, making it hard to dodge triangles. 0,0
Probably be yelled out for claiming the Nemesis as a 'useless weapon', though to be fair, the weapon you have to give up to obtain it was alright, it's stage 2 was great for some bosses due to its increased power and lack of extra flying things the level 3 version has, a notable case being an earlier Boss long before you can get the Nemesis....