Easy

Shoot sparky. It will give you a multiball, play it over and over.

Medium

(preferred) During sparky multiball, try to hit the snake and the coffin. This will let you get all 3 on a lit shot, then collect it, which locks it in. Your goal is to collect enough of all of them to light wizard mode. Play the first one and each shot is lit 3 times for a few mil.

Hard

General notes

Worth a shout out - hitting coffin enough times grants a multiball. It is safest to backhand.

If you get all 3 on a shot in the same ball then it lights a hurry up at the captive ball and locks in that shot. Its good to go for this during multiball as it lets you stack items fast.