Hyper-, hypersonic
Boom

A hypersonic rocket travels at five times the speed of sound
Hypersonic [5x]
Hy-hy-, hy-hypersonic

Hyper- [?x]
Hyper-, hypersonic
Boom

Hyper-, hypersonic

Hy-, hypersonic [2x]
Hypersonic [6x]

A hypersonic rocket travels at five times the speed of sound
But some argue that a good rhythm generates even more movement

Hy-hy-, hy-hypersonic
Hypersonic

Hy-hy-, hy-hypersonic
Hypersonic [6x]
Hy-hy-, hy-hypersonic

Hy-hy-, hy-hypersonic [4x]