This is coming off from playing other TD games by the big companies but adding Heroic mode or Demon mode would give the game so much replay value!

These modes can be made so either it goes to unlimited waves or a set amount such as 1000 max.

Difficult should be higher then normal Tier such as the tournament version! Or even more as these modes could include additional enemies and bosses.

Such as bosses that have ability to spawn tons of tanks or do special attacks!

Rewards: Higher coin & cash rate , even giving some stones for completing it fully once, again taking from other games that offer Heroic or hardcore mode.

Adding this to the game would make it so much more fun to grind and come up with strategies for bosses giving the game much more long term😎.