Warp Points are teleporter gimmicks which first appeared in Sonic & Knuckles. Warp Points are able to transport its users to the higher levels in an Act after stepping onto one of them.
Warp Points are presented as big, glowing, crimson marble orbs with a small ring-shaped structure around them. When using them, they emit a pillar of light.
Sonic & Knuckles
In Sonic & Knuckles, they are featured at Hidden Palace Zone and Sky Sanctuary Zone. In Hidden Palace Zone, they are set on large altars and are used to transport to the Sky Sanctuary Zone, where they are used more regularly. It can be used to transport to another one, which is usually located at the higher section of the zone. Warp Point transports the player as a large warp wave at high speed. When the player lands at the higher Warp Point, he/she is able to progress in the Zone. The higher Warp Point does not work similarly to the lower one, as it only works as a link to the transporting wave.
At the end of Sonic's version of Sky Sanctuary Zone, Mecha Sonic destroys one of them, in doing so making no escape for the player and challenges him to the fight. Knuckles' version of the Sky Sanctuary Zone has only one Warp Point at the linear arena, where the final battle against Mecha Sonic takes place.
In the console version of Sonic Generations, the Warp Points can be found in Sky Sanctuary Act 1 and 2. They work exactly as they did in Sonic & Knuckles. The only known difference is that the higher Warp Point, where the player gets transported, does not have a marble orb, but only the hole where the player gets transported from. Warp Points also appear in a few Challenge Acts, including Knuckles: Buried Treasure and Amy: Topsy Turvy. In Aerial Paradise, they are also set on walls and ceilings.