Mega Currencies

There are two types of Mega Currencies in Scrap Clicker 2 (none in the other games): Mega Magnets, which were added in update 4.2 and Mega Tires, which were added in 8.2.

How to unlock them
Both mega currencies can be unlocked by purchasing Tree Upgrades. Mega Tires do not replace Mega Magnets.
 * Mega Magnets can be unlocked at x50 Stars
 * Mega Tires can be unlocked at x525 Stars

Effect
Both mega currencies spawn EXACTLY every 500 merges instead of the 0.2% chance/merge the upgrades stated. After a mega currency has spawned, it can be tapped to make it explode into 50 magnets (Mega Magnets) or 15 tires (Mega Tires).
 * The magnets spawned from the mega magnets are different from those that spawn from storms. The base amount for them is 1, this can be increased by purchasing several Tree Upgrades or leveling the Scrapyard v3.
 * The tires spawned from mega tires, however, function the same as those from storms. This means it can also give x4 tires.

There are also Team Challenge tasks that require the player to collect 2/3/7 Mega Magnets for 50/100/300 points (which makes them easier then the normal merge quests if you are active). Mega Tires do not count to this.

Trivia

 * Each Mega Tire gives the player 15 minutes worth of tire growth or 3/4 of a full tire storm. This makes Mega Tires insanely strong as you can probably obtain one every 2~3 minutes with Faster Barrels activated.