Oscar's Letter Party is a 1988 Sesame Street interactive home video released for the View-Master Interactive Vision video game system. The system came with a simple controller which included a joystick and three colorful buttons. As the video plays, the characters address the player directly, and ask the player to make a choice by pressing one of the buttons. The video has a number of different soundtracks recorded, and the player's choices toggle back and forth between the soundtracks, giving the impression that the player has changed the course of the story.
| ||The game opens up with Oscar the Grouch discovering that his trash can is surrounded by happy faces. Using the controller, the player erases them for him.|
| || Grover and Christopher play a game where he gets tickled, then holds up a sign saying "STOP" when he wants the tickling to end.|
The player can hit the blue button to tickle Grover, and the red one to make him stop.
| || ||Oscar reveals that the player will be able to attend a grouch party, but must do some things first. First, Fluffy displays the letters O, V, C and K and wants the player to choose one.|
| ||Once the player has picked one, Oscar hears a car, alerting him that the party decorations have arrived. As he leaves, he presents a film that may have the chosen letter in it.|
| || Psychedelic alphabet.|
The player can hit a button when their letter appears on screen for a message from Oscar.
The beginning and endings are cut.
| || ||To make sure the player is worthy enough of attending his grouch party, he conducts a grouch test. However, if the player proves they aren't grouchy they'll get an invitation to Bob's party instead.|
| ||Before the test, Bob appears, hoping the player will attend his normal party.|
| || || For the first part of the test, Oscar has the player make a grouch word.|
| ||After the first test, Bob comes by the can to make sure the player is coming to his party.|
| || "Octopus Blues"|
(EKA: Episode 2293)
The player can hit their green button to make 8 fish appear when they hear the number 8.
| ||Next, Oscar presents a grouch music test. He plays a song that can be sung two ways...|
| || Big Bird signs "May I Be Your Friend?" to an eel in his nest.|
The player can press the blue button to hear Oscar's grouchy lyrics, and the red button for Big Bird's nice lyrics.
| || Oscar writes the results on his scorecard and asks the player to remember their letter for the next segment.|
| || A Rube Goldberg device is used to display the letters of the alphabet.|
(EKA: Episode 2274)
The play can hit their green button when their letter appears.
Only the first part of this cartoon is shown.
| || Kermit sings "The Frogs in the Glen."|
(EKA: Episode 2122)
When the player hears the word "frog", their green button will make an animated frog appear.
| || While Bob blows up the balloons for his party, Oscar runs the "Grouch Two-Plex" at his can. Two films appear above him (one about a butterfly and the other about pigs), which will give more proof as two how grouchy the player is.|
| ||If the player picks the pig film, Oscar gives it a good review: 4 oinks.|
| ||Description currently unavailable.|
| || Grover asks Maya to help him follow an arrow. The arrow keeps changing direction until Grover falls down, exhausted.|
(EKA: Episode 2096)
The player can hit their white button to make an arrow that matches the one on screen.
| ||Now it's time for the "Party Quiz". Oscar gives choices for party games, decor and presents. He plays a film while he tallies the score.|
| || Kermit sings "Caribbean Amphibian."|
(EKA: Episode 2494)
The green button will make animated frog lead to a lillypad
Footage of island maps replaced
| ||Oscar gives the final tally, which gets the player into either Bob or Oscar's party.|
| || If the player gets Oscar's, then they gets to attend a party with Oscar, his elephants and The Grouchketeers.|
| ||Description currently unavailable.|
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