This game had quite the promising start, but becomes incredibly dull towards the end. While I appreciate that the controls weren't any more complex than they needed to be, and the upgrade system was simple and to the point, once you have max speed and power, most levels are solved by holding the mouse at the edge of the screen. The weapon upgrades do not offer a large enough change, I was able to beat the boss of the first campaign with the starter bow and full upgrades, and it only took a little longer than it did with the strongest bow. The skills could also use some readjusting, as the arrow rain was far more useful than the powershot was.
The difficulty of this game was strange. Levels 8 and 9 stand out in particular, as I had a lot of trouble dealing with the horde of bomb dudes that spawn at the start of that level. They have so much health, that until I lost several times and upgraded my strength, speed, and bow, I couldn't stop them from dropping off several bombs, and at the same time, there are the flying dudes that my knights can't help with dealing even more damage. Even after I managed to finally upgrade my stats to the point where I could survive, I still took a lot of damage. In contrast, 90% of the enemies on level 9 died before they even made it on-screen, until the bomb dudes showed up. I think their health needs some readjusting, or at least the player needs another way to deal with them.
The second and third two campaigns seem to offer new gameplay, but it only ends up feeling like a reskin of the first one. There's just not enough to keep my interest after the first 15 levels when the rest just feels the same.