Here is the full list of all 45 Flagsplosion achievements.
Complete both Canton mode and Un-Canton mode without any wrong answers
Play every mode in Flagsplosion
Complete Canton mode
Finish with a score of twenty-five or more in Endless Hard or Reverse Hard
Reach a score of fifty in Endless Reverse
Reach a score of twenty-five in Endless Reverse
Reach a score of twenty in Endless Reverse
Reach a score of fifteen in Endless Reverse
Reach a score of ten in Endless Reverse
Reach a score of five in Endless Reverse
Earn twenty gold stars on a flag.
Unlock all flags in the Encyclopedia.
Reach a score of one hundred in Endless.
Earn ten gold stars on a flag.
Earn nine gold stars on a flag.
Have a gold star on the flags who have a single gold star.
Earn eight gold stars on a flag.
Unlock five hundred flags in the Encyclopedia.
Solve a flag on its birthday.
Earn seven gold stars on a flag.
Earn six gold stars on a flag.
Choose incorrectly on a flag that has its name on it in big letters.
Unlock two hundred fifty flags in the Encyclopedia.
Complete one hundred training levels.
Gain gold on all training levels.
Earn five gold stars on a flag.
Unlock one hundred flags in the Encyclopedia.
Complete fifty training levels.
Complete twenty-five training levels.
Complete ten training levels.
Earn four gold stars on a flag.
Reach a score of fifty in Endless.
Reach a score of forty in Endless.
Unlock fifty flags in the Encyclopedia.
Earn three gold stars on a flag.
Reach a score of thirty in Endless.
Correctly solve eight flags with red in a row.
Reach a score of twenty in Endless.
Play Endless Mode.
Reach a score of ten in Endless.
Earn two gold stars on a flag.
Unlock your first flag in the Encyclopedia.
Earn a gold star on a flag.
Unlock a hidden bonus game mode.
Complete a training level.