Plastic: more energy affinity, not glass cannons but not extremely durable, can float on water

Metal: more electric and heat affinity, durable, more aerodynamic

Step on(has a step to open lid):talkative, Mortar like attacks, shoots energy bombs in an arch, long range

Wheeled(has wheels):proud, good ground movement, (most trash cans fly/float), durable, energy shields, usually lead a charge, short range

Ashtray(has an ashtray on top):short tempered, has the power of fire, medium range

Standard square SS(normal square shape trash can): stoic, main force, rapid fire energy bolts, medium range

Standard circle SC(normal circular shaped trash can):Bubbly, shoots large powerful energy beams, has to charge for power, medium-long range

Electronic(trash cans that are powered by electricity, yes they exist):energetic, thin powerful lasers, good sight, long range, charge for power