[EDIT: It occurs to me some system info might be helpful. I am running Windows XP, Java 7. Also, was wondering about the OP name: J(ava) Gard(e)ner...and its relationship to the game!]
Ha you have found me out! I am the Java Gardener!
I tried running the game two ways and had a problem with seed throwing each time.
When I ran the game after clicking the jar (I do have a Windows system), throwing the seed (left mouse click) always threw for a long distance to the left. Right click did the same and did cause the mushrooms to fade.
When I ran via the .exe, the same thing happened except the throws were much closer to the tree (shorter distance). (Second try via .exe, the left throw was again a long distance and only to the left, regardless of which way I was facing.)
I wish I knew what could be causing that problem. Could you check if the bullets go where the mouse pointer is in my game Zombie Hordes? Click on my name in the GameJolt download page to find it.
I think the sounds and music are reasonably good, but maybe a bit more tweaking is in order. I found the slow piano music a bit morose for this game. I think it is a very pretty piece of music, well written and solid as a composition, just not exactly hitting the right tone for the game. I can see wanting something peaceful, but maybe this can be achieved without what for me evokes melancholy.
Yeah I was originally intending, and time permitting will, make the story that you have returned from a long journey to find your forest home burned down and you have to restore it. Also, that would be just the intro music. More energetic music would play when you encounter enemies.
Likewise the seed throwing seems like a near miss. And the "ungrow" maybe could be different from the "grow"? But I don't know what I'd use instead.
The sprite is slightly different, but it needs revising. Also needs a different sound.
You might rerecord your music sample, if you decide to keep this same cue. There are at least 3 audible clicks in it, two near the beginning and one close to the end that almost sound like lp record pops.
Hey there is! Gotta admit I didn't notice that.
I like the menu system a lot and the way the game kicks off seems very promising and clear. It looks like a really neat concept for a game and I look forward to being able to grow my way past the first two-level obstacle. Congratulations on all you have achieved here!
Thanks for the feedback! Hopefully someday you will make it past that obstacle!