kiriki: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/kiriki - from package: kdegames

You may install the required package with command yum install {package}

Error in other languages:
kiriki: bevel nie gevind nie
kiriki: comandă negăsită
kiriki: comando não encontrado
kiriki: commande introuvable
kiriki: command not found
kiriki: käsku ei ole
kiriki: không tìm thấy lệnh
kiriki: komanda nerasta
kiriki: Kommando nicht gefunden.
kiriki: kommandot finns inte
kiriki: komut yok
kiriki: nie znaleziono polecenia
kiriki: níor aimsíodh an t-ordú
kiriki: no se encontró la orden
kiriki: no s'ha trobat l'ordre
kiriki: opdracht niet gevonden
kiriki: parancs nem található
kiriki: perintah tidak ditemukan
kiriki: príkaz nenájdený
kiriki: příkaz nenalezen
kiriki: команда не найдена
kiriki: командата не е открита
kiriki: 命令找不到
kiriki: コマンドが見つかりません