Algodoo

49 27 6d 20 77 61 74 63 68 69 6e 67 20 79 6f 75 20 74 6f 6f 21

For the binary, i decoded it and it says "i'm watching you" although I'm not that succesful on the Base16 comment.

Decoded it says "I'll be watching you too!"

34 39 20 32 30 20 36 31 20 36 64 20 32 30 20 37 37 20 36 31 20 37 34 20 36 33 20 36 38 20 36 39 20 36 65 20 36 37 20 32 30 20 37 39 20 36 66 20 37 35 20 32 30 20 36 31 20 36 63 20 36 63 20 32 65 20 [:)]

OH

MY

GOD