I'm not sure if the descriptions to these games are run through Google Translate, or just lazily written. Call me a grammar nazi, but it doesn't help first impressions.
if you're having trouble, here's a tip: start with upgrading five pure mushrooms to the max. one of each element. upgrade them in the order of the monsters' weaknesses. and as for the skills, level up the money over time for faster upgrading.
it would be cool if the windows that show changing stats such as exp, hp, mp, age timer, etc. would actually change instead of showing the number it had at teh moment the window appeared, and not budging afterwards.
that is exactly what a boss fight should be like. no massive amount of shooting to lower the health. just intelligent use of the environment to destroy a special monster. if its just a matter of shooting it down, what makes it different from the other monsters?
 "Spurt"){kind=icon}
 "The King's League: Odyssey"){kind=icon}
 "This is not a minimalist game"){kind=icon}
 "Mushroom Revolution"){kind=icon}
 "Wonder Rocket"){kind=icon}
 "Battle without End"){kind=icon}
 "Picma"){kind=icon}
 "Wilt: Last Blossom"){kind=icon}
 "Incursion"){kind=icon}
 "Monsters TD 2"){kind=icon}
 "Quantum Patrol"){kind=icon}
 "Droids at the Gates"){kind=icon}
 "Bubble Tanks Tower Defense 2"){kind=icon}
 "Dungelot"){kind=icon}