Director Jeff Fowler took to Twitter to write: "Taking a little more time to make Sonic just right." His post added that the movie would now hit theatres on February 14 2020, although it was originally scheduled to be released in the US on November 8 2019.
Fowler has certainly been aware of the online criticism of Sonic's portrayal, and earlier this month he promised changes would be made.
"Thank you for the support. And the criticism," he tweeted. "The message is loud and clear... you aren't happy with the design and you want changes.
"It's going to happen. Everyone at Paramount and Sega are fully committed to making this character the BEST he can be."
The main problem for fans is that Sonic looks a little more furry and a little less wide eyed than what they're used to.
But the decisions made about Sonic's appearance were previously defended by executive producer Tim Miller, who said his look was adapted for the "real world".
"It would be weird and it would feel like he was running around nude if he was some sort of otter-like thing," Miller said.
"It was always, for us, fur, and we never considered anything different. It's part of what integrates him into the real world and makes him a real creature."
Sonic the Hedgehog is now slated to hit cinemas on February 14 2020.
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