This is a good concept and an interesting interpretation of the theme, but:
- Subtitles for the opening cutscene. An option to replay the opening cutscene
- Visualization of flasks spent not only during the selection phase, but also on the main gameplay screen
- Possibly in the future (if continuing this concept), various Buffs or Debuffs affecting coins / flasks could be added, similar to (Clover Pit), so that the gameplay isn't limited to just flipping a coin
- (Perhaps this was in the opening cutscene and I missed it) — The final goal; it could be anything: a target pool, a number of flips, etc