Have you installed the latest update? Let us know in the comments if the Jumbo Josh chase still lags for you, or if you have found a specific NSP source that works with firmware 16.0.0.

The Switch version previously compressed voice lines to save space. The new update introduces a higher bitrate for the voice acting of Banban and the terrifying Queen Bouncelia. While the file size increases slightly, the clarity of the ambient horror is significantly improved.

If you own the game legitimately:

Garten of Banban has had a few small updates on Switch — mostly performance/stability fixes. No major content DLC (like later episodes) exists yet on Switch; the eShop only lists Episode 1 as of mid-2025.

Improved frame rates and reduced loading times during transitions between kindergarten levels.