Preety easy, not the full song really, but it's what i fugured out.
listen to the song for the whole rythm of it
| G | 3 5 3 5 |
| D | 5 2 3 5 5 2 3 5 |
| A | 3 44 33 111 3 11111111111 3 44 33 111 3 |
| E | |
| G | |
| D | 2 |
| A | 3 34 11 1 131 1 66654444 |
| E | 44444444444 3 3333 6666 |
after that bass part, there is a guitar part, which is this-
| e | 31 |
| B | 43 343464 |
| G | 3 |
| D | 5 53 35 5 |
| A | |
| E | |
Then back into the bass...
| G | 53 232 |
| D | 54 3413 | x4 |
| A | 6 |
| E | |
And then the guitar comes in with the main riff after that
| e | |
| B | 7 8 |
| G | 5 8 7 5 5 3 5 8 6 7 |
| D | 5 5 8 7 5 6 5 5 3 5 8 4 5 |
| A | 3 5 6 5 3 6 5 3 1 3 6 |
| E | 3 4 3 |
and there you have it, all of the epic parts of cortex's boss theme in crash bandicoot 2