Archers! Game Feedback

Hey there! Thank you for your time providing me with feedback on my little game. Much appreciated, I'll buy you a beer :) I tried to keep the questions to the minimum, there is a comment box at the end, I would be grateful if you could put your thoughts about the game there. Cheers!

If you haven't seen it yet, the game is here: http://archersgame.com/

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    Bonus pickups (faster movement/shooting, invincibility etc.)
    Character customization (change the look of your archer)
    Co-op play (team up against tasks, quests and environment/AI challenges
    Player vs. Player modes (team deathmatch, capture the flag etc.)
    Make it into a MOBA game (like LOL/DOTA)
    Make it into a medieval-battle game (melee weapons and strongholds to defend/conquer)
    Make it into a RPG game, drop multiplayer
    Make it into a MMORPG game
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