Checker Flags in Sonic the Hedgehog movie 2020

The checker pattern is associated with Sonic the Hedgehog, as this pattern can be found all throughout the game.  In the 2020 Sonic the Hedgehog film, several real life checker flags could bee seen is several scenes.  In his burrow underground, Sonic has an kind of altar of checker flags, that can be seen in a montage, when we see what his daily life is like.

To the left, notice the crossed checker flag lamp that Sonic gets in his new bedroom above his new besties.  Sonic has a big smile, as he gets comfy in his new bedroom, that is above ground.

When Sonic is in the bar, he grabs a pennant streamer that just happens to have checker designs.  The image has been flipped to 'right side up.'  Thus the people in the bar look normal and Sonic zooming around the bar is running on the ceiling.