Thor's Hammer is a VS 4 mini-game in Sonic Shuffle. It is randomly played when a player lands on an Event Space.
Players stand on a large pillar under a starry sky. Dr. Eggman will fly above the pillar in his Egg Mobile and either shoot bolts of lightning at the pillar or charge over the pillar, causing characters to lose Rings if he hits them. The best way to avoid him is to see where his shadow is and stay away from it. If a bolt of lightning destroys a small piece of the pillar, Rings will fly out and sometimes a Forcejewel. Jump up to get them first. If a player is about to fall off the pillar, pressing will help them climb back on.
The mini-game lasts for 60 seconds, with Eggman's attacks becoming more rapid as the timer counts down. When time is up, 20 Rings are awarded to the person who got the most Rings, 10 for second and 5 for third.
||Avoid Eggman's lightning attack and collect the rings! The player with the most rings wins. Just don't fall off!
— Game Rules
||Even if you're about to fall off the platform, don't give up! Use the Analog Stick and to get back in the game!