1994 throwback

1994 throwback is the final level of Astro's Playroom and the lair of the final boss, the T-Rex. To get this level you need to collect all 4-key PlayStation Artifacts by finding it on levels. If you collect all the 4-key PlayStation Artifacts on PlayStation Labo. The Message will pop-up

Walkthrough
1994 throwback appears as a gray cube in the basement of CPU Plaza, but after completing the four main stage (Cooling Springs, GPU Jungle, SSD Speedway and Memory Meadow) the ancient symbols will appear on the cube and open it up scaring the Bots. After a prompt from the game tells you to check it out, the player must head to the basement of CPU Plaza and go to the cube to open it up, going into it will send the player into a black void filled with references to the very 1st tech demo of the PS1, going up the staircase of memory cards will land you on a stone platform, you will get a checkpoint as well as some extra lives, the T-Rex will appear after a few seconds and roar, beginning the final boss fight.

Boss fight (phase 1)
The T-Rex has four different attacks: After chomping down a few times the T-Rex's teeth will flash yellow meaning the T-Rex will chomp down on one side of the platform and bite sending out a shockwave (watch for yellow marker to know where to dodge the chomp and tail attacks). Once the T-Rex tilts the platform it will chomp down at least one to two more times before getting tired, this will be a opportunity to hit the T-Rex's eye. Hit both eyes to finish phase 1.
 * 1) Firing discs out of its mouth
 * 2) Spitting out enemies
 * 3) Slamming its tail onto the platform
 * 4) Chomping down onto the platform with its mouth.

Boss fight (phase 2)
Astro will do his victory dance for a few seconds before a green tail and a giant T-Rex emerges from behind (said T-Rex being in the style of the game's other bosses) his new T-Rex will roar and the background will change to a stormy landscape, the T-Rex will start to breathe fire meaning Astro will have to traverse some platforms to avoid being burnt to a crisp. After clearing the platforms Astro will make it to a large metal platform and the T-Rex will stop breathing fire, beginning phase 2. The T-Rexes second phase has most of the same attacks (disc firing enemie spitting, tail smashing, etc), but with the addition of a laser eye attack and a missile firing attack, these attacks will be thrown at Astro back to back until eventually the T-Rexes laser will blast a hole in the floor, revealing a gold trophy, throwing this trophy at the T-Rexes eye will stun it, allowing Astro to hit the eye and deal damage to the boss. Do this one more time with the platinum trophy and hit the other eye enough to knock open the T-Rexes mouth, grab onto the latch on the T-Rexes tongue and pull on it, eventually the tongues will snap back and smack the T-Rex in the nose, the T-Rex will stand cross eyed and eventually fall off screen while breathing fire, ending the boss fight.

Ending
After the credits roll, the player will be sent to a new area and get Artefacts for the PS5, when the PS5 is collected, it and the other PS5 Artifacts will appear in the center of the PlayStation Labo, congrats on beating Astro's Playroom.

Trivia

 * The setting of 1994 throwback is a reference to the very 1st PS1 tech demo (T-Rex) which showed how the PS1 made the models appear on screen.
 * If you punch the glass or Beam Glide on the glass in CPU Plaza you can trigger the special CPU animations even when 1994 throwback has it scared.