Activision will only release Turbo Charge Donkey Kong and Hammer Slam Bowser amiibo via Skylanders SuperChargers starter packs. According to a recent interview with the US publisher, both amiibo sets will be sold only with the Nintendo starter packs in order to limit consumer confusion between platforms. The production of both exclusive characters lie with Activision, however, rather than Nintendo – having been less than reliable when it comes to stock.

Announced during the Nintendo Digital Event earlier this week, Turbo Charge Donkey Kong and his Barrel Blaster vehicle is available as part of the Wii U starter pack, priced at $74.99 within the US or £54.99, €69.99 in UK and Europe. While Hammer Slam Bowser and his vehicle the Clown Cruiser will arrive with the Wii and 3DS starter packs, priced at $74.99 (£54.99/€69.99) and $64.99 (£49.99/€59.99), respectively. It’s a little steep in price if you’re looking to “catch” ’em all, but cheaper prices certainly come around for those who wait just a little bit longer.

Both amiibo launching with Skylanders SuperChargers will be compatible in other Nintendo games, as confirmed with their handy circle slider on the NFC chip. The upcoming RPG platform title will arrive for a variety of platforms on September 20 in North America and Europe on September 25.