No worries, I tend to write long responses (& dev logs) as well :)
1) Yes, I took note of that, and switched to using the Enter button for shooting soon after the Space button was misbehaving :D
2) Oh, I see. It seems that when I last wrote my reply, the spider can only survive 1 hit before being taken back to the main menu :p
3) He he, I too was wondering how on earth I had achieved such a feat, seeing that my spider never lasted more than a minute before getting hit by the flies D: ; nice touch on having the flies constantly heading towards you each time they spawn :)
4) Yes, it added quite a bit of challenge to the game, as compared to just spamming the Attack button and just steering clear out of harm's way :p
5) Hmm, I've never come across the Skins, even in the Unlock screen, and the only thing I would see is the unattainable/non-purchasable Health upgrade :(
P.S.S.: Heh, I didn't even realise there was a boss fight until it showed up, and then I forgot that I could shoot the bullets it was firing at me, leading to me 'dodging' into incoming fire :P XD . The gold glitch didn't affect me as I thought it was just a text display at the top right corner, seeing as the gold counter remained at zero throughout that one session (& the sessions that came after it) :p