MAP29: Ticket to Eternity (Plutonia 2)

MAP29: Ticket to Eternity is the twenty-ninth map of Plutonia 2. It was designed by Adolf Vojta (Gusta) and Pavel Tvrzník (Pipicz), and uses the music track "The Hunt" by Jamie Robertson.

Walkthrough

 * Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.

Other points of interest
To the left of the start is a hallway with six windows, each containing a Commander Keen and a shoot-to-activate switch. However, at the start of the level only one Keen is open to kill; the other 5 must be opened by finding and killing 5 more hidden Keens scattered throughout the rest of the level.

Once the player has found (and killed) the 5 hidden Keens and activated all 6 switches, the chamber at the end of the hallway will open. Inside is a teleporter to a secret chamber with a "thank you" message from the developers and a list of level design and music credits, as well as three Supercharges.

Secrets
1. Opposite the area with the Invulnerability sphere, in the southeast of the main map, there is a stage with an arachnotron, which has a plate with a Baron's face on the back wall. Open it, and you'll find Combat Armor inside.

Routes and tricks
The exit is the gullet of the dragon's mouth in the northeast of the map. Although you can plainly see it, there is a door in your way which doesn't open until you pass through "The path through Hell" in the southeast (which requires all three keys to reach). However, you can also lure an Arch-Vile out of the curved tunnel in the north-center, and Arch-Vile jump your way to the platform just beyond the door. (You must straferun to make your way up, the gaps are too big otherwise).

Because you need the red key to reach the yellow key, and the blue key is closest to "The path through Hell", it might be advisable to get the red, then yellow, then blue keys when performing a UV Max run.

The teleporter at the end of "The path through Hell" leads to the room in the northeast where the Spider Mastermind is, making the the Spider Mastermind easy to telefrag.