Finally 400! Just play until level 200.

Around level 235... I hesitated, thinking it would be manageable, but boy was I wrong.. Once you pass level 300, the difficulty is no joke. It took me two hours to clear level 397.. With no items or coins, I kept watching ads and checking paths back and forth. After over 20 hours, my concentration dropped, and I started forgetting where I tapped in the previous round.. I've demanded compensation from the AI, so I'll just wait. Since level 200 and level 400 count the same time, I recommend only playing up to 200. Unless you're a true pro, you'll regret it later. Addendum) After hitting 400, all remaining action quests disappeared.