A skull made of fire from the best flames of them all, and it floats with you. Trigger words/actions:

yes

no

blink

jump

flip

lol (has sound)

die

spin

ack (has sound)

stalk (has sound)

(Note:
If it says (has sound) next to it, it has sound and a action. If it doesn't it only has a action.)

(Really they all have sound and action, but those are the best ones)