Reviving Sesame Street's Legacy Unity Game
Migrated the legacy game to Unity 2022 LTS with frame-perfect animation fidelity and restored broken systems across iOS, Android, and Amazon.
CLIENT | SESAME WORKSHOP
Business Problem
Business Problem

Sesame Street needed to modernize a legacy Unity game with broken animations and systems, while preserving the original experience for young learners.

Output By Tintash
Output By Tintash

Upgraded the game to Unity 2022 LTS, rebuilt animations and core systems, and shipped fully stable releases on iOS, Android, and Amazon.

Impact For Client
Impact For Client

Enabled ongoing publishing, reduced maintenance risk, and preserved the beloved Elmo experience with frame-perfect fidelity across platforms.

Quotation Border

A great team.


Tintash delivered on time and on budget, working within scope and having flexibility to work through details that were not completely caught in scope. All the players in the project, from PM to artists and developers, were very easy to work with.


Being 10 hours ahead of our corporate office meant that we could iterate rapidly - providing feedback at the end of our day and seeing results the very next day.

Jonathan Levy

Jonathan Levy

Platform Production Manager, Digital Products
Sesame Street

Demo Video of Potty Time with Elmo
Client Background and Business Problem

Sesame Street's Potty Time with Elmo is an early-childhood learning mobile game that uses guided animations, audio, and interactive play to teach potty training. However, it was built on a legacy version of Unity where deprecated animation, subtitle, and audio APIs caused key experiences to break.


With publishing issues across iOS, Android, and Amazon - and a risk of losing the game's frame-perfect character animations that drive child engagement - Sesame Street urgently needed a full migration to the latest Unity LTS version without altering the user experience kids love.

Client Background
How did Tintash deliver?
Sesame Street chose Tintash due to:
  • Proven Unity expertise across legacy and modern versions
  • Experience handling animation fidelity, as we've worked with the same client previously, so this was a recurring client
  • Ability to deliver within fixed timelines without compromising quality
Solution Approach
Tintash approached the project with ownership and precision:
  1. Discovery & Codebase Assessment
    • Audited the legacy Unity project to identify broken modules, deprecated APIs, and systems at risk during porting.
  2. Animation Migration (Highest Priority)
    • Rebuilt animations in the new Unity animation system
    • Matched movements frame-by-frame to ensure no visible difference
    • Validated side-by-side with client references
  1. Subtitle & Audio System Restoration
    • Replaced deprecated APIs
    • Rebuilt subtitle logic for compatibility
    • Stabilized audio triggers and voiceover timing
  2. Cross-Platform Readiness
    • Ensured builds worked seamlessly and met requirements for Google Play (Android), Apple App Store (iOS) & Amazon Appstore
  3. Quality Assurance & Iteration

    Collaborated closely with the client, sharing builds and iterating to guarantee:

    • Visual integrity
    • Functional stability
    • Platform compliance

Tintash proactively identified better implementation alternatives beyond the original code structure, ensuring future sustainment without breaking the original vision.

Features Built / Solutions Designed
Feature/SolutionPurpose for the Client
Animation System RebuildPreserve Elmo's movement, timing, and expressions perfectly using Unity's updated tools
Subtitle Module MigrationRestore accessibility features for children and parents
Audio System StabilizationFix triggered sounds and voice-over syncing in updated Unity
Platform Deployment (iOS, Android, Amazon)Expand reach and ensure continued store availability
Impact for the Client
The results gave Sesame Street a future-proof version of their product with:
  • Long-term engine compatibility without technical debt
  • Consistent user experience across three platforms
  • Revived and stable monetization/publishing opportunities
  • Reduced maintenance risk thanks to updated modules and APIs
  • Peace of mind regarding animation accuracy (frame-by-frame fidelity)

The client was fully satisfied and confirmed that the outcome met their expectations.

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