Not a coincidence actually! DOOM had Smashing Pumpkins in it first: the cheat IDSPISPOPD ("smashing pumpkins into small piles of putrid debris") gives you the

Not a coincidence actually! DOOM had Smashing Pumpkins in it first: the cheat IDSPISPOPD ("smashing pumpkins into small piles of putrid debris") gives you the chainsaw due to some inside joke. The Smashing Pumpkins sample is a nod to this.