2011-12: Miska Siikonen skated with KooKoo's U20 and U18 teams in the lower divisions of Finnish junior hockey and was an assistant captain for KooKoo's top division U16 team in his first season in Kouvola. He had one goal in his only game with the club's U20 team and scored 4 goals with 1 assist in four games for the U18 club that competed in Finland's B division. In 33 games for the KooKoo U16 team he scored 21 goals with 34 assists and 36 penalty minutes. Siikonen was +2 with 2 assists and no penalty minutes in four games for the Finland U16 team.
2012-13: Siikonen went from Kookoo to Pelicans and played 24 games for the Lahti-based club's U18 team. He scored 9 goals with 7 assists and had 6 penalty minutes. In one game with Finland's U17 team he was +2 with 1 assist.
2013-14: Siikonen split the season between Pelicans U20 and U18 teams as a 17-year-old in his second season in Lahti. He scored 11 goals with 9 assists and was -1 with 4 penalty minutes in 38 regular season games as Pelicans finished ninth in the 16-team Finnish A junior league. Pelicans beat HPK in the preliminary round and swept TPS before falling to league champion Espoo in the semifinals and losing to Assat 5-4 in the bronze medal game. Siikonen scored 4 goals and was -6 with 4 penalty minutes in 12 playoff games. In 16 games with the Pelicans U18 team, including one playoff contest, he scored 13 goals with 18 assists and 6 penalty minutes. Siikonen was ranked 70th amongst European skaters in Central Scouting's final rankings prior to the 2014 NHL Draft.
Siikonen has been successful at the junior level due to his size, strength and determination. Not overly flashy in terms of technical skills, speed or offensive instincts, he plays a sound positional game and is a team-first type that gets the most out of his ability. He is fairly mobile for a big player.
Sikkonen was productive in a lower line role for Pelicans in his first season in Finland's A junior league in 2013-14. He will try to assume a more prominent role at the junior level and possibly crack the Liiga level as soon as this upcoming season. Long-term his size and attitude suggest he can be an effective two-way forward who will contribute the occasional goal or assist.