What kind of constriction do we have in "g"?

Rapid and strong decrease in amplitude, prominent release burst. It sounds like [g]

play	[kʊgɪ́ní]	we slandered
play	[kʊgɪ̂:ka]	to exaggerate

Slow and weak decrease in amplitude, no burst. It sounds like the fricative [γ].

play	[kɔgɛnja]	to be amazed
play	[kɔvɛ́ga]	to shave

Mixed signals: halfway between the first two and the second 2 above

play	[kʊgû:ta]	to win
play	[kʊgʊti]	we stacked