So I was inspired by the new Anti-Ninja Security System which also is an Anti-Bot Security System. But I think it is kind of cumbersome to handle.

Let me introduce the Anti-Bot Security System (ABSS™) to you:
Behind every one of the following links you have to solve the code red security stage in order to obtain a top secret key. Every top secret key has a "@lex.sg" postfix you want to remove.
What you want to do then is to concatenate the expression "https://www.humblebundle.com/?key=" with the obtained key in order to gain access to secrets protected by this revolutionary system.

Key Alpha: http://www.google.com/recaptcha/mailhide/d?k=01awgt91LEji9UcBAVkDXpzg==&c=P6pVLpYGpgnGETQHgVej8tiutReUrsGPwzaQ7Xe_81A= [TAKEN. ONLY OPEN FOR REFERENCE]
Key Beta: [TAKEN]
Key Gamma: [TAKEN]
Key Delta: [TAKEN]
Key Epsilon: [TAKEN]