This song by Sponge Cola is in F#.
These are the “cheat” chords I played…
Part 1a: B2 - C#/E - F#2 - C#/E - F#2 - B2
Part 1b: B2 - C#/E - F#2 - C#/E - F#2 - C#/E - F#2 - C#/E - F#2
Part 1c: C#/E - F#2 - C#/E - F#2 - G#m7 - F#/A# - B2 - C#
Part 2a: F#2 - C#/E - D#m7 - B2
Part 2b: same as Part 2a
Part 3a: G#m7 - F#/A# - B2 - C# - B/D# - C#/E - F#2 - C#/E
Part 3b: G#m7 - F#/A# - B2 - C#4 - C#
Part 4: B2 - F#/A# - F#m/A - G#m7
Part 5: same as Part 2a