Ben 10 is in a lost lava world with mech robots that are built to destroy. The only way to come out of this swinging is for Ben Tennyson to use his Omnitrix to transform into Heatblast. Heatblast can use his fireball powers to destroy most of these robot fighters in one hit. The longer you survive as Heatblast the more the waves will build bigger and stronger robots to attack you.
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