It looks like when you open the stage select menu, it flashes text that I assume says "Stage Select", but then the text says "Language". Also, make sure the text says "Level Select" since you call them Levels and not Stages.
10/13/19 - Quality Assurance Testing Device: LG G8; Android 9.x 1) The spawn locations on the left and right most edges are partially cut-off by the screen. This just makes it look visually broken. [Issue Importance: Medium]
10/13/19 - Quality Assurance Testing Device: LG G8; Android 9.x 1) I would put in the "Watch Add" text into the continue button, so the user know's they have to watch an ad to continue. I absolutely hate it when ads appear when I don't expect them to. [Issue Importance: N/A, suggestion]