Five Most Corrupt Countries by Continent

Sudan doesn't work, but Guinea-Bissau works for it.

If you ever feel like updating it to current scores, Eritrea would be replaced with Guinea-Bissau. Belarus and Moldova would be replaced with Kosovo and Macedonia. Albania would tie with Bosnia & Herzegovina. Samoa would be replaced by the Solomon Islands. Turkmenistan and Uzbekistan would be replaced by Syria and Yemen. Dominican Republic would be replaced by Mexico. Guyana and Argentina would be replaced by Bolivia and Peru.

Uhhh Syria??

you forgot the second most corrupt country syria

This quiz uses 2014 data and hasn't been updated since, so here's a list of some changes based on this.

For Africa, Sudan and Eritrea drop off the list. Now, Equatorial Guinea and Burundi are on.

For Asia, Afghanistan and Uzbekistan drop off the list while Syria, Yemen, Myanmar, and Azerbaijan go on. Myanmar and Azerbaijan are both tied with Iraq with a score of 23.

In Europe, Belarus and Moldova drop off the list, while Bosnia & Herzegovina and Serbia go on.

Now for the Americas. In NA, Mexico overtakes the Dominican Republic. In SA, Bolivia and Peru replace Guyana and Argentina.

In Oceania, there's a lot more changes. The Solomon Islands, Vanuatu, and Fiji go on the list. New Zealand and Samoa are off. I have no idea where you got the data for Samoa, it's not in the source.