Cape Verde gained a deserved 1-1 Africa Cup of Nations draw against Tunisia on Sunday as Heldon's penalty cancelled out Mohamed Manser's opener at the Nuevo Estadio de Ebebiyin.
With Zambia and DR Congo drawing 1-1 earlier in the day, Tunisia looked set to assume top spot in Group B despite being on the back foot for sustained spells in the second half.
Rui Aguas' side, who are only appearing in the African showpiece for the second time, struck the post inside the first two minutes in an encouraging first-half display.
However, they were undone by a move of real quality as Stephane Nater found Ahmed Akiachi who squared for Manser to finish from inside the six-yard box.
Cape Verde hit back, though, and salvaged a point when Heldon calmly converted from the spot to deny a side ranked 18 places above them in the FIFA world rankings.
Babanco's resulting set-piece found Kuca via the wall but the Estoril forward failed to find a finish from close range as Cape Verde were unable to gain the reward their first half showing perhaps warranted.
Georges Leekens' men started the second half with much more impetus, but Cape Verde again looked dangerous on the counter - with Kuca's shot cleared off the line by Ben Youssef after some slick build-up play involving Babanco and Heldon.
Tunisia's almost took the lead just after the hour when Manser headed against the crossbar and, although Yassine Chikhaoui bundled in the rebound, referee Eric Otogo-Castane adjudged there to have been a foul on the goalkeeper.
Eventually, the quality of Leekens' side showed as Nater found Akiachi with a well-angled throughball and the ES Tunis forward squared across goal for Manser to crash home the opener.
Aguas' men were level 12 minutes from time when Heldon tucked away a penalty, having been felled by Youssef inside the area, as Cape Verde got their campaign up and running with a positive result.
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