Cars have (or had, I don’t know if they’re still included) an electric lighter that you pushed in to heat up. It was basically a little metal ring that got really hot. So I think it probably is the heat.
I remember my friend also had a plasma lighter, that unsurprisingly used plasma to light things. It made a really scary noise in the wind and hurt like a motherfucker to touch. We were 18 and dumb.
ConSumo is an amazing minigame in Bully. It’s the standard “eat thing to get bigger” type game but it’s just done really well.