Source: Panther Paintball
Barry tries to escape Grodd's mindscape but finds the exit portal fiercely guarded by Solovar in episode 6x13 “Grodd Friended Me”.
Source: saileensamwitch — Twitter via What's Filming
Mxyzptlk transports Alex and J'onn to a paintball game to keep them occupied while he helps Kara in episode 5x13 “It's a Super Life”.
The team heads to the jungle to locate a monster terrorizing both sides in episode 3x07 “Welcome to the Jungle”.
Source: lemon_buzz — Twitter via What's Filming
Liv and the team investigate a former army sniper who was killed during a paintball game in episode 1x09 “Patriot Brains”.