| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Happy Children (12") | American Disco | AMD 004 | Italy | 1983 | |
| Happy Children (12") | CBS | CBS 12-3922 | Netherlands | 1983 | |
| Happy Children (12") | Discomagic Records | AMD 004 | Italy | 1983 | |
| Happy Children (12") | Carrere | 4Z9 05143 | US | 1983 | |
| Happy Children (12") | Discos CBS | CBS A 12.3922 | Spain | 1983 | |
| Happy Children (12", Maxi) | Carrere | 8302 | France | 1983 | |
| Happy Children (12", Maxi) | Carrere | 817 505-1 | Germany | 1983 | |
| Happy Children (7") | Carrere | 817 505-7 | Germany | 1983 | |
| Happy Children (7") | Carrere | 13.321 | France | 1983 | |
| Happy Children (7") | Discomagic Records | NP 004 | Italy | 1983 | |
| Happy Children (7") | Discos CBS | CBS A-3922 | Spain | 1983 | |
| Happy Children (7", Single) | Carrere, RGE | 301.7072 | Brazil | 1984 | |
| Happy Children ('88 Remix) (12") | Discomagic Records | MIX 325 | Italy | 1988 | |
| Happy Children ('88 Remix) (12") | Don Disco | DDP 041 MX | Spain | 1988 | |
| Happy Children (Remix '88) (12") | BCM Records | B.C. 12-2107-40 | Germany | 1988 | |
| Happy Children (Remix '88) (12") | BCM Records | BCM 12089 | Germany | 1988 | |
| Happy Children (12") | Discomagic Records | MIX 500 | Italy | 1990 | |
| Happy Children (Summer Latino Remix '91) (CD, Maxi) | International Dance Music | 6970 RSCD 09 | Belgium | 1991 | |
| Happy Children - Summer Latino Remix '91 (12", Maxi) | International Dance Music | 6970 RSM 09 | Belgium | 1991 | |
| Happy Children - Summer Latino Remix 91' (7") | International Dance Music | 6970 RSS 09-7 | Belgium | 1991 | |
| Happy Children 2009 (12", Ltd, Pic) | Drizzly | DRIZZLY100 | Germany | 2009 | |
| Happy Children (CD, Single) | ZYX Music | 1026-5 | Germany | 2009 |