Nintendo Don't Give Up Level Up Mushroom Girls Tanks The Nintendo Don't Give Up Level Up Mushroom Heather Red Racerback Tank Top has just the motivation you need to beat your personal best! A distressed print on the front of this cute red Nintendo tank top reads "Don't Give Up Level Up" next to a 1-Up mushroom. 50% Polyester, 25% Cotton, 25% Rayon. Designed with raw-edge hems.