For Hardcore Gamers Only
Action packed 2D Multiplayer Combat
No. Buying Link-Dead alpha is not pre-ordering the full version. It is buying access to play the alpha. version for an undetermined amount of time. So all alpha versions (I can assure many of them, couple months at least) until the beta version is out which will have a different payment scheme.
Yes. I have everyone that pays registered and I will certainly remember how much you have paid.
Yes just go to the Download page and Buy Now again for a better price this time :).
Paypal has other options of funding your account (bank transfer, checks and cash), but first create a PayPal account. More information can be found here.
I'm not a vampire (yet). There is no age requirement for creating a PayPal account. Go to PayPal.com open an account and then transfer your pocket money through a bank transfer or in any other way that PayPal allows.