I technically skipped it because I encountered Rayman 2 before Rayman 1.

The first installment feels harder considering it uses a limited-lives system (alongside saved games), while the sequel seemed to give unlimited retries (even if you have to restart the level). And with the modern Rayman games, the first game feels like wouldn’t be as interesting or approachable.

This might be from an old version of ruby, but:

irb(main):001:0> a
NameError: undefined local variable or method `a' for main:Object
        from (irb):1
        from C:/Ruby23-x64/bin/irb.cmd:19:in `<main>'
irb(main):002:0> b
NameError: undefined local variable or method `b' for main:Object
        from (irb):2
        from C:/Ruby23-x64/bin/irb.cmd:19:in `<main>'
irb(main):003:0> a=b
NameError: undefined local variable or method `b' for main:Object
        from (irb):3
        from C:/Ruby23-x64/bin/irb.cmd:19:in `<main>'
irb(main):004:0> a
=> nil

This NameError doesn’t stop the assignment, going through despite the error.